CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Statement Of Income And Comprehensive Income [Abstract]
Net income (loss)	$ 14,326	$ (1,310)	$ (19,514)	$ (5,679)
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	4,845	(9,621)	(18,086)	(10,311)
Total comprehensive income (loss)	$ 19,171	$ (10,931)	$ (37,600)	$ (15,990)